forked from Imagelibrary/rtems
* libcsupport/include/rtems/libcsupport.h, libcsupport/src/scandir.c, libmisc/cpuuse/cpuusagereset.c, libmisc/monitor/mon-monitor.c, libmisc/serdbg/serdbg.c, libmisc/serdbg/serdbg.h, libnetworking/netinet/in_cksum_powerpc.h, shttpd/compat_rtems.h: Fix warnings.